### Godot version

8449592d92eaeef990f5502b419d491ee3eeb7a6

### System information

Windows 11

### Issue description

Zooming in the script editor on an empty script freezes the entire editor for a few seconds, but if the file is large then it freezes for 4-5 seconds (which is unacceptable). Looks like a recent regression.

### Steps to reproduce

Just zoom in/out on the large script file.

### Minimal reproduction project

N/A
int end = MIN(_convert_pos_inv(p_sd, p_start + p_length), _convert_pos_inv(p_sd, p_sd->bidi_override[ov].y)) - ov_start;
			ERR_FAIL_COND_V_MSG((start < 0 || end - start > p_new_sd->utf16.length()), false, "Invalid BiDi override range.");
			
			UBiDi *bidi_iter = nullptr;
			if (p_sd->bidi_iter[ov]) {
				bidi_iter = ubidi_openSized(end - start, 0, &err);
				if (U_SUCCESS(err)) {
					ubidi_setLine(p_sd->bidi_iter[ov], start, end, bidi_iter, &err);
					if (U_FAILURE(err)) {
						
						err = U_ZERO_ERROR;
						const UChar *data = p_sd->utf16.get_data();
						switch (static_cast<TextServer::Direction>(p_sd->bidi_override[ov].z)) {
							case DIRECTION_LTR: {
								ubidi_setPara(bidi_iter, data + start, end - start, UBIDI_LTR, nullptr, &err);
							} 
							case DIRECTION_RTL: {
								ubidi_setPara(bidi_iter, data + start, end - start, UBIDI_RTL, nullptr, &err);
							} 
							case DIRECTION_INHERITED: {
								ubidi_setPara(bidi_iter, data + start, end - start, p_sd->base_para_direction, nullptr, &err);
							} 
							case DIRECTION_AUTO: {
								UBiDiDirection direction = ubidi_getBaseDirection(data + start, end - start);
								if (direction != UBIDI_NEUTRAL) {
									ubidi_setPara(bidi_iter, data + start, end - start, direction, nullptr, &err);
								} else {
									ubidi_setPara(bidi_iter, data + start, end - start, p_sd->base_para_direction, nullptr, &err);
								}
							}